Hi.dashboard = {
    init: function(){
        
        var chart = Ext.create('Hi.view.dashboard.VMetrics', {            
            store: Ext.create('Hi.store.SDashboard', {
                storeId: 'dashboardDS',
                autoLoad: true
            })
        })
        var panel = Ext.create('Ext.panel.Panel', {
            title: 'Estadisticas de pruebas satisfactorias',
            items: chart,
            renderTo: Ext.get('slot2')
        });
//        Hi.mainPanel.add(panel);        
    }
}
Hi.dashboard.init.call(Hi.dashboard);